AutoCAD Map 3D General Discussion

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*M.
Message 1 of 9 (225 Views)

Counting points that fall inside poligon

225 Views, 8 Replies
11-19-2002 03:12 PM
Any suggestion about selecting points from point topology that falls to
poligon from poligon topology?

Milos
Active Member
johnny7
Posts: 10
Registered: ‎02-26-2003
Message 2 of 9 (225 Views)

Re: Counting points that fall inside poligon

11-20-2002 03:39 AM in reply to: *M.
Not sure I understand the question but have you tried the old WP (window polygon) option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points (you could snap to your existing polygon end points).
*M.
Message 3 of 9 (225 Views)

Re:

11-20-2002 03:10 PM in reply to: *M.
I have several poligons (more than 5000) and
more than 100000 points. Some points fall into first poligon, some in second
poligon, etc.I'm using ArcView instead, but my nature od job require that i'm
using AcadMap. With ArcView 8.1 you could count point hits that falls inside
each poligon.

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Not
sure I understand the question but have you tried the old WP (window polygon)
option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points (you could
snap to your existing polygon end points).

*Garnett, Kevin W.
Message 4 of 9 (225 Views)

Re:

11-20-2002 09:39 PM in reply to: *M.
How about doing an overlay of the point topology
and the polygon topology.  This will create a new topology that will give
you the relationship that you are looking for.


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

I have several poligons (more than 5000) and
more than 100000 points. Some points fall into first poligon, some in second
poligon, etc.I'm using ArcView instead, but my nature od job require that i'm
using AcadMap. With ArcView 8.1 you could count point hits that falls inside
each poligon.

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Not
sure I understand the question but have you tried the old WP (window
polygon) option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points (you
could snap to your existing polygon end
points).

*M.
Message 5 of 9 (225 Views)

Re:

11-20-2002 10:58 PM in reply to: *M.
Mmmm,

 

Yes, yes! I not test this yet, but I think that's
the answer. All the time I have in mind this options, and never realize
it.

 

Thanks Kevin!

 

Regards,

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

How about doing an overlay of the point topology
and the polygon topology.  This will create a new topology that will give
you the relationship that you are looking for.


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

I have several poligons (more than
5000) and more than 100000 points. Some points fall into first poligon,
some in second poligon, etc.I'm using ArcView instead, but my nature od job
require that i'm using AcadMap. With ArcView 8.1 you could count point hits
that falls inside each poligon.

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Not
sure I understand the question but have you tried the old WP (window
polygon) option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points (you
could snap to your existing polygon end
points).

*M.
Message 6 of 9 (225 Views)

Re:

11-20-2002 11:02 PM in reply to: *M.
What is resulte from overlaying point and poligon
topology? Result is point topology. I need poligon topology as
result!!! Any suggestion about it?

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

How about doing an overlay of the point topology
and the polygon topology.  This will create a new topology that will give
you the relationship that you are looking for.


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

I have several poligons (more than
5000) and more than 100000 points. Some points fall into first poligon,
some in second poligon, etc.I'm using ArcView instead, but my nature od job
require that i'm using AcadMap. With ArcView 8.1 you could count point hits
that falls inside each poligon.

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Not
sure I understand the question but have you tried the old WP (window
polygon) option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points (you
could snap to your existing polygon end
points).

*Friedrich, Scott
Message 7 of 9 (225 Views)

Re:

11-20-2002 11:31 PM in reply to: *M.
This type of analysis isn't really suitable for
Map.  Kevin is correct in that an overlay analysis has to be done. 
The result is a point topology - but to find out how many points fall within
each polygon isn't easy.  While performing your overlay, you want to create
a new Object Data table that contains the Source (Point) ID and the Overlay
(Polygon) ID.  The result will be a point topology, but if you look at the
object data for these points it will contain the original Point ID and the ID of
the polygon that it falls within.

 

To speed up the calculation of finding total points
in polygons you can export the Object Data to a database and use the database
tools to find count totals for each polygon.

 

Good Luck,

 

Scott


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

What is resulte from overlaying point and poligon
topology? Result is point topology. I need poligon topology
as result!!! Any suggestion about it?

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

How about doing an overlay of the point
topology and the polygon topology.  This will create a new topology
that will give you the relationship that you are looking for.


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

I have several poligons (more than
5000) and more than 100000 points. Some points fall into first
poligon, some in second poligon, etc.I'm using ArcView instead, but my
nature od job require that i'm using AcadMap. With ArcView 8.1 you could
count point hits that falls inside each poligon.

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Not
sure I understand the question but have you tried the old WP (window
polygon) option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points (you
could snap to your existing polygon end
points).

*Wilson, Neil
Message 8 of 9 (225 Views)

Re:

11-21-2002 03:46 AM in reply to: *M.
My thinking is to generate a report that
contains each point with the associated polygon ID as a field. Then the
file can be opened in Exel and sorted and counted according to to polygon
ID.


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

This type of analysis isn't really suitable for
Map.  Kevin is correct in that an overlay analysis has to be done. 
The result is a point topology - but to find out how many points fall within
each polygon isn't easy.  While performing your overlay, you want to
create a new Object Data table that contains the Source (Point) ID and the
Overlay (Polygon) ID.  The result will be a point topology, but if you
look at the object data for these points it will contain the original Point ID
and the ID of the polygon that it falls within.

 

To speed up the calculation of finding total
points in polygons you can export the Object Data to a database and use the
database tools to find count totals for each polygon.

 

Good Luck,

 

Scott


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

What is resulte from overlaying point and
poligon topology? Result is point topology. I need poligon
topology as result!!! Any suggestion about it?

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

How about doing an overlay of the point
topology and the polygon topology.  This will create a new topology
that will give you the relationship that you are looking for.


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

I have several poligons (more than
5000) and more than 100000 points. Some points fall into first
poligon, some in second poligon, etc.I'm using ArcView instead, but my
nature od job require that i'm using AcadMap. With ArcView 8.1 you could
count point hits that falls inside each poligon.

 

Milos


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Not
sure I understand the question but have you tried the old WP (window
polygon) option at the command line?

Try LIST then WP and it will let you pick a bunch of pick points
(you could snap to your existing polygon end
points).

*M.
Message 9 of 9 (225 Views)

Re:

11-21-2002 06:44 PM in reply to: *M.
Thanks Scott,

I was realize this proces with ArcView 8.1 few month ago, but I would like
to realize all of partial segment of this proces only with Map 5.0, O.K.
also with Access.
Lets walk throw your mail:
>> While performing your overlay, you want to create a new Object Data table
that contains the Source (Point) ID and the Overlay (Polygon) ID.>>
That's O.K.
>>The result will be a point topology, but if you look at the object data
for these points it will contain the original Point ID and the ID of the
polygon that it falls within.>>
O.K.
>>To speed up the calculation of finding total points in polygons you can
export the Object Data to a database and use the database tools to find
count totals for each polygon.>>
I'm finding count totals for each polygon!
Now, I would like to link this tabel to centroid, to coloring poligons in
view of count totals field with Thematic Wizard. Here I stopped. I do not
find way to realize this last step?

Any suggestion!?

Regards,

Milos

"Scott Friedrich" wrote in message
news:988022535D795395D1C6C8D66E3E0D3E@in.WebX.maYIadrTaRb...
> This type of analysis isn't really suitable for Map. Kevin is correct in
that an overlay analysis has to be done. The result is a point topology -
but to find out how many points fall within each polygon isn't easy. While
performing your overlay, you want to create a new Object Data table that
contains the Source (Point) ID and the Overlay (Polygon) ID. The result
will be a point topology, but if you look at the object data for these
points it will contain the original Point ID and the ID of the polygon that
it falls within.
>
> To speed up the calculation of finding total points in polygons you can
export the Object Data to a database and use the database tools to find
count totals for each polygon.
>
> Good Luck,
>
> Scott
> "M." wrote in message
news:B209F681A5DD2D51A33EB82C99DD2C36@in.WebX.maYIadrTaRb...
> What is resulte from overlaying point and poligon topology? Result is
point topology. I need poligon topology as result!!! Any suggestion about
it?
>
> Milos
> "Kevin W. Garnett" wrote in message
news:16056B84749243035845CA810FF868AA@in.WebX.maYIadrTaRb...
> How about doing an overlay of the point topology and the polygon
topology. This will create a new topology that will give you the
relationship that you are looking for.
> "M." wrote in message
news:9C9472610E390FF2363BEA44150487FB@in.WebX.maYIadrTaRb...
> I have several poligons (more than 5000) and more than 100000
points. Some points fall into first poligon, some in second poligon, etc.I'm
using ArcView instead, but my nature od job require that i'm using AcadMap.
With ArcView 8.1 you could count point hits that falls inside each poligon.
>
> Milos
> "johnny7" wrote in message
news:f1253c7.0@WebX.maYIadrTaRb...
> Not sure I understand the question but have you tried the old WP
(window polygon) option at the command line?
> Try LIST then WP and it will let you pick a bunch of pick points
(you could snap to your existing polygon end points).
>
>

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